Enrollment
408
California · 2024-25 NCES data
Middle school (grades 6-8) · Marina, CA
Los Arboles Middle
Federal NCES profile for Los Arboles Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 31/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 062553003832
👥 S:T ratio 22
🌟 Gifted program 30
🎓 Counselors 59
📋 Attendance 13
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Los Arboles Middle earns 31/100 on the Resource Investment Index, even as it posts class sizes smaller than 70% of California schools.
- #1 of 6
- public schools in Marina · Resource Index
- 31
- Resource Index · Lower
- 19.4:1
- small classes for California
- 71.0%
- free-lunch eligible
Los Arboles Middle has class sizes smaller than 70% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Los Arboles Middle ranks #1 of 6 public schools in Marina, CA.
School address
District: Monterey Peninsula Unified · California
NCES ID 062553003832 Verify on NCES CCD record →
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
19.4:1
vs 21.5:1 California avg
-10% vs state
Free-lunch eligible
71.0%
vs 55.5% California avg
+28% vs state
Student-teacher ratio in context
How Los Arboles Middle compares with California and U.S. medians
What stands out at Los Arboles Middle
Los Arboles Middle is a higher-need, mid-sized middle school in Marina, California, enrolling 408 students.
Class sizes run a bit leaner than typical: 19.4:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 71.0% of students eligible for free meals.
With 408 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,906 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #571.
Its student body is led by Hispanic or Latino (63%) and Asian (15%) (diversity index 56/100).
Counselor coverage is strong, about 204 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 35.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Monterey Peninsula Unified also operates Monterey High (1,401 students) and Seaside High (1,073 students) alongside Los Arboles Middle.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Los Arboles Middle compares
Los Arboles Middle on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.4:1 | ▼ 10% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 71.0% | ▲ 28% | 55.5% | 51.7% |
| Enrollment | 408 | top 59% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.4:1
Leaner classes than 18% of US schools, heavier class loads than most.
408
Bigger than 49% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
71.0%
free-lunch eligible
- 28% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
19.4:1
students per teacher
- 10% below state mean
Top 30% in California - lower ratio than 70% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
35.0%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,404
per pupil, district-wide
- below California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors2.0 FTE
Per 204 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 8 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 2.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 63.4%
Asian 14.7%
White 11.8%
African American 5.7%
Native Hawaiian / Pacific Islander 2.2%
Two or More 1.5%
American Indian / Alaska Native 0.7%
Largest group: Hispanic or Latino at 63.4% of enrollment.
Student-body diversity index 55.9/100
Simpson diversity index - at 55.9, Los Arboles Middle is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Monterey Peninsula Unified, which includes Los Arboles Middle.
$16,404
Per student
-1%
vs California
Avg $16,509
-1%
vs U.S.
Avg $16,593
Revenue mix
Local 46.8%
State 40.7%
Federal 12.5%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Los Arboles Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Monterey High | Larger | Lower economic need | Higher S:T ratio |
| Seaside High | Larger | Similar economic need | Higher S:T ratio |
| Marina High | Larger | Lower economic need | Similar S:T ratio |
| La Mesa | Larger | Lower economic need | Higher S:T ratio |
| Monte Vista | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Los Arboles Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,401
- Students per teacher
- 21.6:1
- Resource Index
- 27/100
- Enrollment
- 1,073
- Students per teacher
- 21:1
- Resource Index
- 28/100
- Enrollment
- 721
- Students per teacher
- 20.6:1
- Resource Index
- 27/100
- Enrollment
- 689
- Students per teacher
- 26.5:1
- Resource Index
- 32/100
- Enrollment
- 688
- Students per teacher
- 26.5:1
- Resource Index
- 31/100
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~408 students)
Next steps
Verify locally before acting on Los Arboles Middle's federal record.
- Compare Los Arboles Middle against another school. Compare schools
- Monterey Peninsula Unified's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Los Arboles Middle
How many students attend Los Arboles Middle?
Los Arboles Middle has 408 students enrolled. It is a middle school in Marina, CA.
What is the student-teacher ratio at Los Arboles Middle?
The student-teacher ratio at Los Arboles Middle is 19.4:1, which is 10% lower than the California average of 21.5:1 and 24% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Los Arboles Middle?
71.0% of students at Los Arboles Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Los Arboles Middle?
The largest demographic group at Los Arboles Middle is Hispanic or Latino at 63.4% of enrollment, in Marina, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.9/100.
What is the Resource Investment Index for Los Arboles Middle?
Los Arboles Middle has a Resource Investment Index of 31/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Los Arboles Middle rank among public schools in Marina?
By Resource Investment Index, Los Arboles Middle ranks #1 of 6 public schools in Marina, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Marina on the city page.
Is Los Arboles Middle a good school?
Los Arboles Middle earns 31/100 on the Resource Investment Index, even as it posts class sizes smaller than 70% of California schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Monterey Peninsula Unified?
Besides Los Arboles Middle, Monterey Peninsula Unified also operates Monterey High (1,401 students), Seaside High (1,073 students), and Marina High (721 students). See the Monterey Peninsula Unified district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.